IamNobuddy@lemmy.world to Today I Learned@lemmy.worldEnglish · 7 months agoTIL Ancient Persians built Yakhchāls, innovative ice storage structures dating back to 400 BC. These dome-shaped coolers used evaporative cooling to keep ice frozen even during hot summers.www.utubepublisher.inexternal-linkmessage-square0fedilinkarrow-up11
arrow-up11external-linkTIL Ancient Persians built Yakhchāls, innovative ice storage structures dating back to 400 BC. These dome-shaped coolers used evaporative cooling to keep ice frozen even during hot summers.www.utubepublisher.inIamNobuddy@lemmy.world to Today I Learned@lemmy.worldEnglish · 7 months agomessage-square0fedilink